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Viewing TCP Group Information
10-4
Closed Connections
The number of times the TCP connections have made a direct transition to the
CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state,
according to the tcpEstabResets.
Open Connections
The number of TCP connections in which the current state is either
ESTABLISHED or CLOSE-WAIT, according to the tcpCurrEstab.
Segments Received
The total number of segments received, including those received in error,
according to the tcpInSegs. This count includes segments received on currently
established connections.
Segments Transmitted
The total number of segments sent, including those on current connections but
excluding those containing only retransmitted octets, according to the tcpOutSegs.
Segments Retransmitted
The total number of segments retransmitted—that is, the number of TCP
segments transmitted containing one or more previously transmitted octets,
according to the tcpRetransSegs.
Incoming Seg Errors
The total number of segments received in error (e.g., bad TCP checksums),
according to the tcpInErrors. If this counter shows a steady increase, it may
indicate that received segments have been encapsulated incorrectly.
Resets
The number of TCP segments sent containing the RST flag, according to the
tcpOutRsts. The number of times TCP tried to reset a connection due to a faulty
connection, a user request, or a lack of resources.
NOTE
The Incoming Seg Errors and Resets fields are only supported by devices using MIB-II as
a management database.